Removing the queen from the c-file, leaving Black's queen in a potential attack by the rook on c1. But this isn't dangerous.
12... f8d8 A new move. 13. b2b4  13... c6c5 Black must play this before White can play c4-c5. The game is quickly heading toward total equality without any imbalances. But we'll still go through a little adventure to get there. 14. b4c5  14... b6c5 